Sheet-delivery apparatus for printing-machines



(No Model.) 3 Sheets-Sheet 1. R. MIEHLE.

SHEET DELIVERY APPARATUS FOR PRINTING MACHINES.

No. 395,710. Patented Jan. 8, 1889.;

Jmrerwov:

n. PETERS. Plwlu-Ulhogmpner, Wnh'mgian. ac

(No Model.) 3 Sheets'-.-Sheet 2.

R. MIEHLE.

a SHEET DELIVERY APPARATUS FOR PRINTING MACHINES. No. 395,710. PatentdJan. 8, 1889 a/w am/way.-

N4 PETERS. FhnicrL'rlhogmpber;Washington, D. C.

(No Model.) 3 Sheets-Sheet 3.

R. MIEHLE.

SHEET DELIVERY APPARATUS FOR PRINTING MACHINES.

Patented Jan. 8, 1889 N. PEfERs. MLilhugaphar. Washington. a, c.

FFIQEQ ROBERT MIEIILE, OF CHICAGO, ILLINOIS.

SHEET=DELIVERV APPARATUS FOR PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 395,710, dated January8, 1889. Application filed March 8, 1887. Renewed August 22, 1888.Serial No. 283,514. (No model.)

T (6 1071-0172, it may concern Be it known that I, ROBERTI\IIEHLE,1(-)Si(ling at the city of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Improvements inSheet-Delivery Apparatus for Printing-Machines, of which the followingis a specification.

The here'ureontained improved arrangements and combinations of partscomprise a sheet-delivery for cylinder printing-presses, in which thesheet can be delivered from the top or front of the cylinder to theforward end of the press with the clean or dry side to the fly-fingers.

In the accompanying drawings, Figure l is a side elevation of atwo-revelution-cyliiuler printing-press with the improved deliverymechanism connected thereto. Fig. 2 is an enlarged sectional side view,with the gearing removed, showing the impression -cylinder and deliverymechanism in detail. Fig. 3 is a top plan view of Fig. 2. Figs. 4: and 5are views showing the deliveryreels. Figs. (5 and 7 show theoperatingcams for the delivery and cylinder grippers. Fig. 8 shows oneof the brackets in which the gri iipers are held. Figs. 9 and 10 showthe recessed parts of the delivery-shaft for allowing the reels beingplaced thereon or removed therefrom when necessary.

In the drawings, letter A designates the main frame of the press; 1: thecylinder, pro vided with the usual grippers, B, and operating-tumbler Bwhich provided with a wiper, B The pins for operating the said tumblerto open and close the grippers for taking the sheet from the feed-boardB" it is thought unnecessary to show or describe. The feed-board B andfeed-guides are shown in their relative position with the deliverymechanism.

C designates the cylinder main gear, which communicates motion to thedelivery-goar C. This in turn meshes with the smaller gear, 0, securedupon the end of tape-roller c, upon which are placed tapes 0 which intheir circuit pass around tape-pulleys 0 upon rod 0, mounted in theupper portion of the main. frame at the front end of the press.

Upon the cylinder journal-boxes are secured the supporting-brackets D,in which is mounted delivery-shaft D containing delivery-reels D andbrackets (l, in whicl'l rod (1 is held, said rod carryingdelivery-grippers (1 which bear with their points upon the curved end orstops d of the brackets (Z. On the outer end of rod (1 is a crank, d",which has a pin, 6, projecting from either side, the outer side beingprovided with a wiper, e, the inner side having connected thereto a rod,containing a spring, (1, which bears against stop (I) and nut (i thetendency of the spring being to keep the points of grippers d bearingagainst stops (Z when the same are not operated by the inclinedcam-plates and .E. Each of these cam-plates are secured to the frame andare held in their proper positions by pins 2 and L, which slide looselyin said frame. At the outer end of these pins are fastened plates i andwhich are operated upon by the forked lever I and I by the followingmeans:

Projecting into the groove of cam N upon the shaft M at the outer sideof the main frame is a stud, 91, secured upon the lower end of the leverI, which is pivoted upon the main frame, and which, as the shaftrevolves, swings the said lever through the action of the cam-groove toand from the main frame, whereby the upper end, which is forked, movesthe plate 2'? and with it cam-plate E, so that the same is brought atintervals into and out of the path of wiper 6 upon crank cl.

The cam plate E receives its movement through lever I, which has bothends forked to engage plates 1' 'z". Itis obvious that when movement isimparted to plate i in one direction the plate i is moved in the otherdirec tion, as lever I is pivoted at or about its center.

The receiving-table F is mounted upon the front end of the pressfranu-i,upon which the printed sheets are deposited by the vibrating fly-fingersf, which are secured to the rod F. This rod is provided with asegmental. gear, u, at its outer end, which is operated by therock-lever U, which in turn receives motion through camU upon shaft M,and through spring it upon the connecting-rod 11. which tends to keepthe frictioirroller 5 bearing against the surface of cam U.

The operatin g time of shaft M is one revo lution for one impressionupon the form by the cylinder for which the same makes two revolutions,the delivery-grippers being timed four revolutions for one impressionupon the form by the cylinder.

The operation of the device is as follows: Beginning at the time thesheet arrives at the top with the cylinder after the impression has beentaken, and the cylinder-grippers approach the delivery grippers, whichrevolve at the same speed as the cylinder, the wiper B engages with theincline 1 upon the cam plate E, which tends to open the cylindergrippersto release the sheet. At the time the sheet is about to be released bythe cyl inder-grippers the wiper 6 passes the incline y, which allowsthe spring (7. to turn crank d, which closes the delivery-grippers upon.the sheet against the stops (1.. The sheet then passes upward with thedelivery-grippers, meanwhile being supported by the delivery-reels. Inorder to not drop the leading edge of the sheet as wiper 6 passes thecamplate E to complete one revolution with the sheet, the same is movedoutward from the path of the wipers by the action of the grooved cam Nand rock-lever I. which also moves cam-plate E into the path of thewiper 0 through the forked lever I, so that when the delivery-grippersarrive at a point to have just passed the tape-roller c with the leadingedge of the sheet the wiper e engages the incline 1 of cam-plate E. Thesheet now continues 011 its outward travel upon the tapes 0 until thesame arrives at a point at which the fly-fingers are timed to lift itbodily upward. and turn it over upon the fly-table, which occurs as theincline m of cam U passes the friction-roller s, which is forced againstthe cam-surface by the compression spring a. From the time thecylimler-grippers release the sheet the same are kept in an openposition While the wiper I3 rolls against the inner circular part, 1 ofthe cam-plate E, which holds them open just long enough to prevent themstriking the tape-roller c, after which the wiper B" passes the incliney, which allows the grippers to close by the usual spring provided forthis purpose.

In order to keep the sheet moving at the proper speed when the same isbeing dis-' charged to the tapes by the delivery-grippers, the reelsmaybe grooved and a strip of rubber or any other flexible materialsecured therein, as shown in Fig. 5, the diameter of which is a littlelarger than the plain reel, so that the same will ride upon thetape-roller e and force the sheet outward. This arrangement alsofacilitates heavy paper or card board being delivered directly from thecylinder to the tapes, when sufficient unprinted marginal space permitsof the same, or the reels in such cases may be entirely dispensed-with.To aecomplish this, the rock-lever I is disengaged from operating uponthe cam-plate E after the same is moved inward to operate the delivery-grippers. The same are then operated at every revolution by thecam-plate E, as the same then remains stationary.

Just inside of brackets D the shaft D is cut away at either side, asshown in Figs. 9 and 10, to allow of placing or removing thedelivery-reels when more or less are required, the opening in thedelivery-reels being just sufficient for allowing the same to be slippedever the narrow portion of the shaft and also to allow the same beingmoved lengthwise without interfering with the brackets d.

In some cases a cylinder having a surface the whole length of theimpression part of the cylinder, and just allowing an opening for thedelivery-grippers to operate in, may be used instead of the independentreels.

By giving one revolution and over to the delivery grippers and reels Iam enabled to deliver the sheets positively to the fly-frame orreceiving devices without hinderance, as the sheets are firmly held bythe delivery grippers until the same are entirely removed from theimpression part of the cylinder, to which they adhere when charged withelectricity, or when printing the second side be fore being thoroughlydry. It is also desirable to give one revolution and over to the delivery-reels when the device is applied to oscillating and stop cylinderpresses, which do not carry the sheet around far enough to discln rgethe same.

I do not claim in. this application the revolving sheet lifters orgrippers being journaled in stationary bearings located at the front ortop of the cylinder to seize the edge of the sheet and start it awayfrom same, as this is embraced and claimed in my application, Serial No.1l+t,070, tiled September 26, 1884.

I claim as my invention- 1. In a cylinder printing-press, thecombination, with the impression-cylinder, of the revolvingdelivery-grippers and deliveryreels located at the front or top of thecylinder, the said delivery-grippers receiving one revolution and overbefore discharging the printed sheet to the delivery mechanism orreceiving device, substantially as described.

2. In a cylinder printing-press, the combination, with theimpression-cylinder, of delivery-grippers, delivery-reels, and thereceiving-tapes located at the front or top of the cylinder, thedelivery-grippers receiving one revolution and over before dischargingthe printed sheet to the'said tapes, substantially as described.

3. In a cylinder printing-press, the combination, with theimpression-cylinder, of the delivery-grippers, reels, tapes, andfly-fingers located at the front or top of the cylinder, the

delivery-grippers receiving one revolution and grippers located at thefront 01. top of the In testiinonywhereof Iaffixmysig'natnre in cylinderfor seizing the leading edge of the presence of two Witnesses. printedsheet and discharging it upon the flyfingers with the non-printed 01'dry side to ROMLRl MIEHLE' 5 said fly-fingers, which deposit the sameupon \Vitnesses:

the fiy-ta-ble with the lastprinted side down, GEO. XV. FRITZ,

substantially as described. PETER DIENHART.

